Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
A quick curiosity.
If I develop an application with ios 5(e.g core audio kAudioUnitSubType_AudioFilePlayer) components and set the deployment target to ios 4 will the ios 5 components work on an ios 4 device?
Since nobody can travel back in time, you cannot use iOS 5 features on iOS 4.
However, you can write an app that runs fine on iOS 4 and uses iOS 5 features if available. For example, you can ask a class whether it implements a method using
respondsToSelector:, and if so, you can call it.With
kAudioUnitSubType_AudioFilePlayer, you can simply try to initialize the audio unit withAUGraphNewNodebut on iOS 4 you will get an error (but not a crash).